nanog mailing list archives
Re: Private use of non-RFC1918 IP space
From: Tico <tico-nanog () raapid net>
Date: Mon, 02 Feb 2009 12:35:29 -0600
Andre Sencioles Vitorio Oliveira wrote:
What about this? Genius from company A chooses public IP block A. Genius from company B chooses public IP block A. Genius collision detected...
That's pretty nasty.However this should be able to mitigate some of the ugly scenarios brought up in this thread:
http://undeadly.org/cgi?action=article&sid=20090127205841Mind you, proper due-diligence could avoid most of these, and/or companies not all choosing to use the default 192.168.{0,1}.0/24 that their SOHO Netgear/Linksys router ships configured with.
-Tico
On Feb 2, 2009, at 4:06 PM, sthaug () nethelp no wrote:Company A uses public IP block A internally. Company B uses public IP block B internally. Company A and B later merge, and connect their networks. No conflict, no renumbering needed (at least not right away). Compare this with company A and B both using overlapping part of for instance 192.168.0.0/16, and then merging. Conflict ensues, renumbering or NATs required in order to connect the networks. Steinar Haug, Nethelp consulting, sthaug () nethelp noAndre Sencioles Vitorio Oliveira asenci () gmail com
Current thread:
- Re: Private use of non-RFC1918 IP space, (continued)
- Re: Private use of non-RFC1918 IP space Colin Alston (Feb 02)
- Re: Private use of non-RFC1918 IP space Chuck Anderson (Feb 02)
- Re: Private use of non-RFC1918 IP space D'Arcy J.M. Cain (Feb 02)
- Re: Private use of non-RFC1918 IP space Valdis . Kletnieks (Feb 02)
- Re: Private use of non-RFC1918 IP space Chris Meidinger (Feb 02)
- Re: Private use of non-RFC1918 IP space D'Arcy J.M. Cain (Feb 02)
- Re: Private use of non-RFC1918 IP space sthaug (Feb 02)
- Re: Private use of non-RFC1918 IP space D'Arcy J.M. Cain (Feb 02)
- Re: Private use of non-RFC1918 IP space sthaug (Feb 02)
- Re: Private use of non-RFC1918 IP space Andre Sencioles Vitorio Oliveira (Feb 02)
- Re: Private use of non-RFC1918 IP space Tico (Feb 02)
- Re: Private use of non-RFC1918 IP space Måns Nilsson (Feb 02)
- Re: Private use of non-RFC1918 IP space D'Arcy J.M. Cain (Feb 02)
- Re: Private use of non-RFC1918 IP space sthaug (Feb 02)
- RE: Private use of non-RFC1918 IP space Matlock, Kenneth L (Feb 02)
- RE: Private use of non-RFC1918 IP space Paul Stewart (Feb 02)
- Re: Private use of non-RFC1918 IP space D'Arcy J.M. Cain (Feb 02)
- RE: Private use of non-RFC1918 IP space Blake Pfankuch (Feb 02)
- Re: Private use of non-RFC1918 IP space Randy Bush (Feb 02)
- RE: Private use of non-RFC1918 IP space Michael Barker (Feb 02)
- Re: Private use of non-RFC1918 IP space Joe Maimon (Feb 05)